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20 Cards in this Set
- Front
- Back
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ct findings of pyelonephritis
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wedge shaped hypoattenuating area
striated appearance of kidney fat stranding |
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ct findings of emphysematous pyelonephritis
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air in the renal parenchyma
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tx of emphysematous pyelonephritis
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nephrectomy
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ct findings of emphysematous pyelitis
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air in the calyces and renal pelvis
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ct findings of pyonephrosis
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pus within an obstructed collecting system
collecting system is dilated and has thickened wall +/- abscess |
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ct findings of renal tb
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usually u/l involvement, superior pole of the kidney usually involved
calcifications within renal parenchyma casseating granulomata in cortex dilated calyces, fibrosis around collecting system --> papillary necrosis |
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complication of renal tb
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papillary necrosis
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what is xgp
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xanthogranulomatous pyelonephritis
renal parenchyma is destroyed and is replaced by fat-laden macrophages 2/2 chronic renal obx and chronic infx |
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ct findings of xgp
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renal parenchyma is destroyed by fat-laden macrophages
staghorn calculus spread into perirenal fascia |
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bosniak class I
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simple cyst:
thin, imperceptable walls no septations wall does not enhance simple fluid (-10 - +20 HU) |
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bosniak II
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benign complex cyst:
thin septations within cyst wall of cyst may be calcified fluid may be hemorrhagic/bright |
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bosniak IIF
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most likely benign but should be followed
incresaed septations low attenuation of wall or non-enhancing, high attenuating lesion >3 cm |
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bosniak III
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likely malignant, needs surgical exploration:
thickened walls, increased nodularity and septations +/- nodules |
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bosniak IV
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definitely malignant:
stage III with enhancing soft tissue components adjacent to or within wall of cystic lesion |
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ddx for multiple renal cysts
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multiple simple cysts
von hippel lindau tuberous sclerosis acquired ADPD multicystic dysplastic kidney |
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ct findings of pancreatic adenocarcinoma
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tumor is hypodense with minimal enhancement
pancreatic duct and cbd dilation +/- atrophy proximal to tumor |
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criteria for resectability of pancreatic adenocarcinoma
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isolated pancreatic mass
combined bile-pancreatic duct dilation without pancreatic mass |
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measurements that cqualify for pancreatic ductal dilatation
CBD? |
>5 mm in head
>3 mm in tail >9 mm CBD |
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criteria for unresectability of pancreatic adenoca
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involvment of major arteries
extension of tumor beyond pancreas invasion of adjacent orgnans BV involvement ascites, liver mets |
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what part of the pancreas doeos adenoca most likely arise from
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head > diffuse > body > tail
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